Synthesis p. 69 - 72 (1995)
Update date:2022-08-11
Topics:
Stadtmuller
Greve
Lennick
Chair
Knochel
Sodium dispersed on titanium oxide readily reduces zinc chloride leading to a highly active zinc powder which inserts into secondary alkyl and benzylic bromides under mild conditions, producing the corresponding zinc reagents in high yields. Compared to zinc dust, this activated zinc allows the preparation of secondary benzylic zinc bromides with significantly less Wurtz-coupling products.
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(2006)
